Medical Terminology Letter E
| TERM | MEANING |
| ec-, ecto- | outside, out |
| echin/o | spiny, prickly |
| echo- | reverberating sound |
| eco- | environment |
| -ectasis, -ectasia | dilation, expansion |
| ectr/o | congenital absence |
| -edema | swelling |
| electr/o | electricity |
| ele/o | oil |
| embol/o | embolus |
| embry/o | embryo |
| -emesis | vomiting |
| -emia | blood condition |
| emmetr/o | the correct measure, proportioned |
| -emphraxis | stoppage, obstruction |
| encephal/o | brain |
| en-, endo- | inside, within |
| enter/o | intestines (small intestines) |
| eosin/o | red, rosy, dawn |
| epi- | above, over, upon |
| epididym/o | epididymis |
| epiglott/o | epiglottis |
| episi/o | vulva |
| equi- | equality, equal |
| erethism/o | irritation |
| erg/o | work |
| erythem/o | flushed, redness |
| erythr/o | red |
| eschar/o | scab |
| eso- | within |
| esophag/o | esophagus |
| esthesi/o, -esthesia | sensation, feeling |
| eti/o | cause |
| eu- | good, normal, well |
| eury- | wide, broad |
| ex- | out, away from |
| exa- | quintillion (10¹⁸) |
| excit/o | to arouse |
| exo- | outside, outward |
| extra- | outside |
